40 hr HAZWOPER Exam Questions and Complete Solutions

40 hr HAZWOPER Exam Questions and Complete Solutions OSHA - Ans: Occupational Safety and Health Administration EPA - Ans: Environmental Protection Agency DOT - Ans: Department of Transportation LLR - Ans: Labor, Licensing, and Regulation DHEC - Ans: Department of Health and Environmental Control CERCLA - Ans: Comprehensive Environmental Response, Compensation, and Liability Act SARA - Ans: Superfund Amendments and Reauthorization Act RCRA - Ans: Resource Conservation and Recovery Act CAA - Ans: Clean Air Act CWA - Ans: Clean Water Act HAZWOPER - Ans: Hazardous Waste Operations and Emergency Response HAZCOM - Ans: Hazard Communication CFR - Ans: Code of Federal Regulations 29 CFR - Ans: OSHA 40 CFR - Ans: EPA 49 CFR - Ans: DOT PEL - Ans: Permissible Exposure Limit OSHA 300 Log - Ans: - Annual log of injuries and illnesses - Must be posted Feb 1 - APRIL 30 each year TLV - Ans: Threshold Limit Value IDLH - Ans: Immediately Dangerous to Life and Health REL - Ans: Recommended Exposure Limit TWA - Ans: Time Weighted Average NIOSH - Ans: National Institute for Occupational Safety and Health ACGIH - Ans: American Conference of Governmental Industrial Hygienists STEL - Ans: Short Term Exposure Limit 3 Hazard Controls - Ans: Engineering, Administrative, PPE RGasD - Ans: Relative density of gas referenced to air NFPA - Ans: National Fire Protection Association UEL - Ans: Upper Explosive Limit HMR - Ans: Hazardous Materials Regulations NA Numbers - Ans: NA numbers (North America), are issued by the United States Department of Transportation and are identical to UN numbers, except that some substances without a UN number may have an NA number. APR - Ans: Air Purifying Respirator ICS - Ans: Incident Command System FIFRA - Ans: Federal Insecticide, Fungicide, and Rodenticide Act HMIS - Ans: Hazardous Material Identification System Vapor Pressure - Ans: the pressure exerted by a vapor over a liquid Vapor Density - Ans: weight of a vapor compared to air Flash Back - Ans: If this vapour trail contacts an ignition source, the fire produced can flash back (or travel back) to the liquid. Flash Point - Ans: the minimum temperature at which a liquid fuel produces enough vapor to burn Specific Gravity - Ans: ratio of a mineral's weight compared with the weight of an equal volume of water DECON - Ans: decontaminate Confined Space - Ans: A work area large enough for a person to work, but arranged in such a way that an employee must physically enter the space to perform work. A confined space has a limited or restricted means of entry and exit. It is not designed for continuous work. Tanks, vessels, silos, pits, vaults, and hoppers are examples of confined spaces. Permit Space - Ans: Contains or has the potential to contain a hazardous atmosphere, contains material that has the potential to engulf the entrant, configured such that the entrant could be trapped or asphyxiated by inwardly converging walls, or by a floor that slopes downward and tapers to a smaller cross section, Contains any other serious safety or health hazard Donning/Doffing - Ans: Putting on and taking off. 3 Hazard Control Zones - Ans: Exclusion - Contamination Reduction Zone - Support, Hot - Warm - Cold Acute/Chronic - Ans: Short term/Long term LD50 - Ans: lethal dose (of a toxin) for 50% of the test population LC50 - Ans: Concentration of a substance needed to kill 50% of the organisms within a specified period of time LO/TO - Ans: BLEVE - Ans: Boiling Liquid Expanding Vapor Explosion Pyrophoric - Ans: Descriptive of any substance that ignites spontaneously when exposed to air. Local/Systemic - Ans: Effects close areas/effects bodily systems HASP - Ans: a slotted hinged metal plate that forms part of a fastening for a door or lid and is fitted over a metal loop and secured by a pin or padlock. NIMS - Ans: National Incident Management System 4 Levels of PPE - Ans: A- Fully encapsulating chemical protective suit., SCBA B- Chemical resistant clothing (overalls and long-sleeved jacket, coveralls, hooded two-piece chemical splash suit, disposable chemical resistant coveralls.) , SCBA C-Full-face or half-mask, air-purifying respirator (NIOSH approved). D- primarily a work uniform 5 Classes of Fire - Ans: Class A Class A Fires consist of ordinary combustibles such as wood, paper, trash or anything else that leaves an ash. Water works best to extinguish a Class A fire. Class B Class B Fires are fueled by flammable or combustible liquids, which include oil, gasoline, and other similar materials. Smothering effects which deplete the oxygen supply work best to extinguish Class B fires. Class C Class C Fires. Energized Electrical Fires are known as Class C fires. Always de-energize the circuit then use a non-conductive extinguishing agent. Such as Carbon dioxide. Class D Class D Fires are combustible metal fires. Magnesium and Titanium are the most common types of metal fires. Once a metal ignites do not use water in an attempt to extinguish it. Only use a Dry Powder extinguishing agent. Dry powder agents work by smothering and heat absorption. Class K Class K Fires are fires that involve cooking oils, grease or animal fat and can be extinguished using Purple K, the typical agent found in kitchen or galley extinguishers. Hypergolic - Ans: Igniting spontaneously on mixing with another substance HMTA - Ans: Hazardous Materials Transportation Act 29 CFR 1910.120 - Ans: Hazardous Waste Operations and Emergency Response 29 CFR 1910.1200 - Ans: Hazard Communication LEL - Ans: Lower Explosive Limit pH - Ans: power of hydrogen UN number - Ans: a four-digit identification number specific to a given chemical; some UN numbers are assigned to a group of related chemicals, but with different characteristics, such the UN 1203 designation for diesel fuel, gasohol, gasoline, motor fuels, motor spirits, and petrol. (The letters UN stand for "United Nations." Sometimes the letters NH for "North American" appear with or instead of the UN designation.) SCBA - Ans: Self Contained Breathing Apparatus APF - Ans: PHMSA - Ans: Pipeline and Hazardous Materials Safety Administration RQ - Ans: Reportable Quantity TPQ - Ans: Threshold Planning Quantity, two values are listed, the first applies to materials with higher hazard properties and the second applies to lower hazard properties (40CFR355.30), the TPQ when equaled or exceeded subjects the facility to regulation under EPCRA Community Right to Know - Ans: SARA title III (Superfund amendments and reauthorization act), ensures free flow of information within the community SDS - Ans: Safety Data Sheet heat stroke - Ans: a condition marked by fever and often by unconsciousness, caused by failure of the body's temperature-regulating mechanism when exposed to excessively high temperatures. Lab Pack - Ans: Radwaste - Ans: Radioactive waste products generated from nuclear technologies such as nuclear power and nuclear weapons production; commonly classified into high level wastes (more radioactive and longer-lasting) and lower level wastes (less radioactive and shorter-lived). Also commonly known as "nuclear waste" Overpack - Ans: melt will fill the easiest flow path first and will continue to pack this area while material reaches the other areas. This is a cause of warping created by unbalanced flow. Mixed Waste - Ans: radioactive & hazardous substances that are housed together GHS - Ans: Globally Harmonized System DHS - Ans: Department of Homeland Security PSM - Ans: Process Safety Management RMP - Ans: Risk management plan